Finding the Fourth Proportional to 134,929.15, 186,209.53 and 74,499.62
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Solution
The fourth proportional to 134,929.15, 186,209.53 and 74,499.62 is: 102,813.50
Step by Step Solution
- Step 1: Write the proportion equation
134,929.15 : 186,209.53 = 74,499.62 : x - Step 2: Convert to fraction form
134,929.15/186,209.53 = 74,499.62/x - Step 3: Cross multiply
134,929.15x = 186,209.53 × 74,499.62 - Step 4: Simplify right side
134,929.15x = 13,872,538,108.08 - Step 5: Solve for x
x = 13,872,538,108.08/134,929.15 - Step 6: Final answer
x = 102,813.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.